Changes in superior vena cava velocity patterns in normal neonates.
We demonstrated serial changes in the flow velocity patterns of both the superior vena cava and the tricuspid flow velocity patterns during the first day of life. These changes in waveforms may be related to alterations in loading conditions induced by the closing process of the ductus arteriosus.
Tamura
M
M
Department of Pediatrics, Akita University School of Medicine, Hondo, Japan.
Harada
K
K
Takada
G
G
D001783:Blood Flow Velocity; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn / Q000502:physiology*; D009200:Myocardial Contraction / Q000502:physiology; D018608:Ultrasonography, Doppler; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging / Q000502:physiology*